docs: def post_series_cancel(self, id, **data):
          """
          POST /series/:id/cancel/
          Cancels a repeating event series and all of its occurrences that are not already canceled or deleted. In order for
          cancel to be permitted, there must be no pending or completed orders for any dates in the series. Returns a boolean
          indicating success or failure of the cancel.
          .. _delete-series-by-id:
          """
          
          return self.post("/series/{0}/cancel/".format(id), data=data)